1972-02-01

Sound Level Tests of Agricultural Tractors 720719

Sound level at the operator station and at a bystander position 7.5 m from the center line of the vehicle has been measured at the Nebraska Tractor Test Laboratory on 67 agricultural tractors. Sound values at 100, 75, and 50% drawbar load are reported. Results indicate that farm tractor manufacturers have made significant progress in reducing sound levels to acceptable values.

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